Scientific and Engineering Practices
This type of investigation involves collecting data and recording observations without making comparisons.
What is a descriptive investigation?
According to Newton’s First Law, an object at rest stays at rest unless acted upon by this.
What is an unbalanced force?
The law of conservation of energy states that energy cannot be created or destroyed, only this.
What is transformed?
This type of wave requires a medium, such as air or water, to travel.
What is a mechanical wave?
The smallest unit of an element that retains the element’s properties.
What is an atom?
Unlike a hypothesis, this type of scientific explanation is well-established and supported by repeated testing.
What is a scientific theory?
The formula for Newton’s Second Law is expressed as F = ma. What does "a" stand for?
What is acceleration?
This form of energy is stored due to an object’s position, such as a stretched rubber band or a ball at the top of a hill.
What is potential energy?
The two main types of waves are transverse and this type, which moves parallel to the direction of the wave.
What is a longitudinal wave?
This table organizes elements based on their atomic number and properties.
What is the Periodic Table?
The three types of scientific investigations include descriptive, experimental, and this type, which compares different variables.
What is a comparative investigation?
Momentum is the product of mass and this property of motion.
What is velocity?
This type of circuit has only one path for electric current to flow.
What is a series circuit?
This wave behavior occurs when light bends as it passes from one medium to another.
What is refraction?
In a chemical equation, these are the substances that react to form products.
What are reactants?
Scientists use these representations to help understand complex systems, but they have limitations such as size, scale, or material differences.
What are models?
This force always acts in the opposite direction of motion and slows objects down.
What is friction?
Name one of the three ways heat is transferred.
What is conduction, convection, or radiation?
This part of the electromagnetic spectrum has the highest frequency and is used in medical imaging.
What are X-rays?
The Law of Conservation of Mass states that mass must be this before and after a chemical reaction.
What is conserved?
In an experiment, this variable is manipulated by the scientist to observe its effect on the dependent variable.
What is the independent variable?
According to Newton’s Third Law, if you push against a wall with a force of 50 N, the wall pushes back with this force.
What is 50 N?
A car engine converts chemical energy from fuel into this type of energy to move the car forward.
What is mechanical energy?
Wireless signals such as Wi-Fi and Bluetooth use this type of wave.
What are radio waves?
This type of reaction absorbs energy, causing the surrounding temperature to drop.
What is an endothermic reaction?